diff --git a/pytest_asdf/plugin.py b/pytest_asdf/plugin.py
index 433650641..42b25f568 100644
--- a/pytest_asdf/plugin.py
+++ b/pytest_asdf/plugin.py
@@ -2,13 +2,12 @@
 import os
 import pathlib
 import warnings
+from dataclasses import dataclass
 
 import numpy as np
 import pytest
 import yaml
 
-from dataclasses import dataclass
-
 # Avoid all imports of asdf at this level in order to avoid circular imports
 
 
@@ -188,7 +187,7 @@ def version(self):
 
         if self._version is None:
             return versioning.default_version
-        
+
         version = self._version.lower().split("asdf-standard-")[1]
         return versioning.AsdfVersion(version)